Catalysis Science & Technology
|
|
- Amanda Turner
- 5 years ago
- Views:
Transcription
1 Catalysis Science & Technology Accepted Manuscript This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after acceptance, before technical editing, formatting and proof reading. Using this free service, authors can make their results available to the community, in citable form, before we publish the edited article. We will replace this Accepted Manuscript with the edited and formatted Advance Article as soon as it is available. You can find more information about Accepted Manuscripts in the Information for Authors. Please note that technical editing may introduce minor changes to the text and/or graphics, which may alter content. The journal s standard Terms & Conditions and the Ethical guidelines still apply. In no event shall the Royal Society of Chemistry be held responsible for any errors or omissions in this Accepted Manuscript or any consequences arising from the use of any information it contains.
2 Page 1 of 4 RSCPublishing COMMUNICATION Cite this: DOI: /x0xx00000x Received 00th January 2012, Accepted 00th January 2012 DOI: /x0xx00000x A high-efficient NH 3 -SCR catalyst, CeO 2 /WO 3 -TiO 2, was prepared by a novel stepwise precipitation approach. This catalyst showed excellent catalytic performance, with superior low-temperature activity, high N 2 selectivity and broad operation temperature window. Furthermore, the CeO 2 /WO 3 -TiO 2 catalyst could perform well even under an extremely high space velocity condition of 1,000,000 h -1. Selective catalytic reduction of NO x with NH 3 (NH 3 -SCR), using V 2 O 5 -WO 3 /TiO 2 or V 2 O 5 -MoO 3 /TiO 2 as catalyst, has been widely used for the removal of NO x from stationary sources. 1 This technology has also been introduced into the market for diesel vehicles and is thought to be one of the best technologies for meeting the increasingly stringent standards for NO x emissions. 2 There have been strong interests to develop highly active catalysts, such as the manganese-based oxides, for low-temperature SCR. 3-5 Such a catalyst would be placed downstream the de-sulfurizer and electrostatic precipitator for stationary applications. The lowtemperature activity of SCR catalyst is also very important for reducing NO x emission from diesel vehicles, for example, during cold startup and on traveling short distances. To promote the NO x reduction at low temperature, an upstream diesel oxidation catalyst (DOC) was often used to increase the NO 2 /NO molar feed ratio and thus promote the fast SCR reaction. However, the optimal NO 2 /NO molar ratio cannot be guaranteed due to the complex engine operating conditions. 6 Moreover, the installation of DOC, containing precious metals, will definitely increase the cost of NO x reduction system and occupy more space on the vehicle. Due to the limited space onboard, one of the main challenges for diesel vehicles is the reduction of catalyst volume, which means that the SCR catalyst is demanded to have good performance under high space velocity condition in wide temperature range. 2 Owing to the toxicity of active vanadium species and large N 2 O Novel Approach for a Cerium-Base High-Efficient Catalyst with Excellent NH 3 -SCR Performance Haili Huang, Wenpo Shan*, Shijian Yang, and Jinhua Zhang formation of vanadium-based catalysts, great efforts have been made to develop substitutional environmentally-benign NH 3 -SCR catalysts. Due to its unique redox, oxygen storage, and acid-base properties, ceria recently has attracted much attention for its applications in NH 3 -SCR catalysts as support, 7 promoter, 8,9 or main active component. 10 Pure CeO 2 oxides usually just possess poor NH 3 -SCR activity. However, CeO 2 -zeolites, obtained by the combination of CeO 2 with zeolites using simple physical mixing method, could achieve excellent NO x conversions at very high space velocities. 11 The catalytic performance of CeO 2 could also be greatly improved by surface sulfation. 12 Ce-based composite oxide catalysts, such as Ce- Ti, 13 Ce-W, 14 Ce-Mo, 15 Ce-W-Ti, 16 and Ce-Cu-Ti 17 oxides, are more attractive than single oxide catalysts because other metal elements can promote the catalytic properties of CeO 2. In this study, a high efficient CeO 2 /WO 3 -TiO 2 catalyst was prepared using a novel stepwise precipitation approach, and the catalyst showed excellent catalytic performance. The CeO 2 /WO 3 -TiO 2 catalyst was prepared by an optimized precipitation method. Ce(NO 3 ) 3 6H 2 O, (NH 4 ) 10 W 12 O 41 and Ti(SO 4 ) 2 dissolved to distilled water together, with a Ce/W/Ti molar ratio of 0.2/0.1/1.0. Excessive urea was added into the mixed solution and then heated to 90 C. After vigorous stirring for 12 h (some samples with different precipitation time were also prepared), the precipitated solids were collected by filtration and then washed with distilled water, dried at 100 C for 12 h and calcinated at 500 C for 5 h, orderly. In order to comprehensively evaluate the activity of CeO 2 /WO 3 -TiO 2 catalyst, V 2 O 5 -WO 3 /TiO 2, Mn/TiO 2 and Cu-SAPO- 34 catalysts were prepared as reference materials (see the ESI for details of the preparation of these catalysts). The SCR activity tests of the sieved powder catalysts were carried out in a fixed-bed quartz flow reactor at atmospheric pressure. The reaction conditions were controlled as follows: 500 ppm NO, 500 This journal is The Royal Society of Chemistry 2012 J. Name., 2012, 00, 1-3 1
3 COMMUNICATION Page 2 of 4 ppm NH 3, 5 vol.% O 2, 5 vol.% H 2 O (when used), 5 vol.% CO 2 (when used), N 2 balance, and 400 ml/min total flow rate. Different GHSV were obtained by changing the volume of catalyst. The effluent gas, including NO, NH 3, NO 2 and N 2 O was continuously analyzed by an online FTIR gas analyzer (Nicolet Antaris IGS analyzer). The concentration data were collected after 0.5 h when the SCR reaction reached a steady state. N 2 physisorption, XRD, XPS, H 2 -TPR, SEM-EDX and NO x -TPD were used for catalyst characterizations (see the ESI for details of the characterizations). The ph variation of the mixed solution during the preparation of the catalyst was shown in Fig. 1. The initial ph of the mixed solution was nearly zero due to the strong acidity of Ti(SO 4 ) 2. After heating of the solution, the ph increased gradually due to the hydrolysis of urea, and some white suspended particles were produced in the first 2 hour. After 3 hours of reaction, the ph of the solution increased to be nearly 3.0 and the suspended particles turned to be a little light yellow. Then, the ph showed a sharp increase and the particles turned to be yellow gradually. After twelve hours of reaction, the ph reached ca. 7.0 and kept to be stable in there, while the colour of the suspended particles was still yellow. Fig. 1 The ph variation of the mixed solution during the preparation of the catalyst. Photos of the obtained samples with different precipitation time (2 h, 3 h, 4 h, and 12 h) and a diagram showing the formation process of the CeO 2/WO 3-TiO 2 catalyst were both inserted. Table 1 Surface atomic concentrations (according to XPS and SEM-EDX analysis) and the BET surface areas of the samples with different precipitation time. Analysis Sample 2 h 3 h 4 h 12 h XPS EDX BET surface area (m 2 /g) Ce (%) W (%) Ti (%) O (%) Ce (%) W (%) Ti (%) O (%) The XPS analysis of the surface atomic concentrations of the samples showed a gradually increase of surface Ce species with precipitation time (Table 1). Combining with the variation of ph, the formation process of the CeO 2 /WO 3 -TiO 2 catalyst could be proposed. The Ti and W species were firstly co-precipitated when the ph of the mixed solution firstly increased, and then the Ce species was precipitated uniformly onto the precipitated W-Ti species following the further increase of ph. This homogenous precipitation process is very important for the production of highly dispersed CeO 2 on WO 3 - TiO 2. Although no obvious difference of the samples could be found in the SEM images (Fig. S1), the EDX analysis confirmed the proposed formation process of the CeO 2 /WO 3 -TiO 2 catalyst, with a gradually increase of Ce atomic concentration (Table 1). The differences of the atomic concentration results obtained by XPS and SEM-EDX were induced by the different analysis depths of the two methods. The BET surface area of the samples showed a gradually increase with the precipitation time from 86.9 to m 2 /g (Table 1). In a XRD analysis of the samples with different precipitation time, only anatase TiO 2 was detected, confirming that CeO 2 was highly dispersed (Fig. S2). It was reported that nano-crystalline CeO 2 is the main active phase over Ce-Ti based catalyst, thus the highly dispersed CeO 2 structure produced by the homogenous precipitation process is probably a main reason for its excellent NH 3 -SCR performance. 13,18 H 2 -TPR analysis suggested that the presence of Ce species on the catalyst could significantly enhance its redox property, which is very important for the NH 3 -SCR reactivity in the lowtemperature region (Fig. S3). Fig. 2 NO x conversion over the samples with different precipitation time. Fig. 2 shows the NO x conversion over the samples with different precipitation time under a GHSV of 200,000 h -1. There is a clear enhance trend of the NO x conversion with the increase of precipitation time for the samples. The sample of 2 h, without Ce on the surface, did not present any low-temperature SCR activity, and the sample of 3 h, with little Ce on the surface, just showed an insignificant low-temperature activity. However, the samples of 4 h and 12 h, with relatively high Ce on their surfaces, exhibited remarkable promoted low-temperature activities. Particularly, the sample of 12 h (CeO 2 /WO 3 -TiO 2 ) presented superior lowtemperature NO x conversion under this relatively high space velocity condition, with over 80% NO x conversion being achieved in a wide temperature range from 175 to 425 C. The NH 3 conversion over the samples was shown in Fig. S4. Below 350 o C, the NH 3 conversion of each sample was very similar to the corresponding NO x conversion, 2 J. Name., 2012, 00, 1-3 This journal is The Royal Society of Chemistry 2012
4 Page 3 of 4 COMMUNICATION indicating that the NO and NH 3 were almost consumed with a molar ratio of 1:1. Above 350 o C, the NH 3 conversions kept to be 100%, which is associated with the oxidation of NH 3 in addition to SCR reaction. The N 2 O production over the samples was shown in Fig. S5. The samples of 4 h and 12 h induced remarkably lower N 2 O production, indicating that surface Ce species were effective for N 2 O inhibition. Fig. 3 NO x-tpd profiles and the NO 2 productions during separated NO oxidations (inserted) of the samples with different precipitation time. Previous studies have shown that, NO x adsorption behavior is very important for the low-temperature SCR over oxide catalysts. To investigate the influence of CeO 2 on the NO x adsorption/desorption of the catalyst, NO x -TPD were performed on the samples with different precipitation time (Fig. 3). The first peak at ca. 100 C is due to the desorption of physisorbed NO x, while the second peak at ca. 250 C was mainly related to the decomposition of chemsorbed NO x species The chemsorbed NO x species showed an evident increase with the increase of surface Ce amount, indicating that NO x species mainly adsorb on Ce sites of the CeO 2 /WO 3 -TiO 2 catalyst during NH 3 -SCR reaction. Many studies have shown that, if the SCR catalyst can effectively oxidize NO to NO 2 in situ, its lowtemperature SCR activity will be significantly enhanced due to the fast SCR effects. In this study, separated NO oxidation tests were carried out over these samples, and the NO 2 production during the tests were shown in Fig. 3. The NO 2 production presented an obvious increase with the increase of surface Ce amount, implying that the highly dispersed Ce species on WO 3 -TiO 2 could act as the adsorption and oxidation sites for NO during NH 3 -SCR reaction at low temperature and thereby remarkably enhance the lowtemperature SCR activity. To better evaluate the NH 3 -SCR performance of CeO 2 /WO 3 -TiO 2 catalyst, a comparative SCR activity test over V 2 O 5 -WO 3 /TiO 2, Mn/TiO 2, and Cu-SAPO-34 catalysts was carried out (Fig. 4). Mn/TiO 2 catalyst has been widely studied for its outstanding lowtemperature SCR activity. However, in this study under the relatively high GHSV of 200,000 h -1, Mn/TiO 2 just presented relatively low NO x conversion in a narrow temperature range, together with high N 2 O production. Under the same GHSV condition, the active temperature of CeO 2 /WO 3 -TiO 2 was lower than that of the widely used V 2 O 5 -WO 3 /TiO 2 for more than 50 C. In addition, the N 2 O production over CeO 2 /WO 3 -TiO 2 was quite low, even in the high temperature range. Cu-SAPO-34 is a very promising NH 3 -SCR catalyst for diesel vehicles. Compared with Cu- SAPO-34, the CeO 2 /WO 3 -TiO 2 showed a similar catalytic performance. The wide operation temperature window and less formation of nitrogenous by-products are both important merits of the CeO 2 /WO 3 -TiO 2 catalyst for its practical utilization, especially on diesel vehicles. Fig. 4 Comparisons of the NO x conversion and N 2O prodction (inserted) over CeO 2/WO 3-TiO 2 catalyst with those over V 2O 5-WO 3/TiO 2, Mn/TiO 2, and Cu-SAPO-34 catalysts. Fig. 5 NO x conversion over CeO 2/WO 3-TiO 2 catalyst under different GHSVs. The effects of H 2 O and CO 2 on NO x conversion over the CeO 2 /WO 3 -TiO 2 catalyst were tested under a GHSV of 200,000 h -1 (Fig. 5 and Fig. S6). The existence of 5% H 2 O and coexistence of 5% H 2 O and 5% CO 2 both induced a decrease of low temperature activity while an enhancement of high temperature activity. Over 90% NO x conversion could still be obtained from 225 to 450 o C. The influence of GHSV on NO x conversion was also investigated (Fig. 5). With the increase of GHSV, the low-temperature SCR activity of the catalyst decreased obviously. However, it still exhibited excellent SCR performance even under an extremely high GHSV of 1,000,000 h -1, with over 80% NO x conversion still being achieved in the temperature range of o C. The high-efficient characteristic of the CeO 2 /WO 3 -TiO 2 catalyst is important for its practical use on This journal is The Royal Society of Chemistry 2012 J. Name., 2012, 00, 1-3 3
5 COMMUNICATION Page 4 of 4 diesel vehicles to reduce the volume of the SCR catalytic converter. In conclusion, we prepared a high efficient NH 3 -SCR catalyst, CeO 2 /WO 3 -TiO 2, using a novel stepwise precipitation approach. This catalyst showed excellent catalytic performance with outstanding low-temperature activity, high N 2 selectivity and broad operation temperature window under high space velocity condition. This work was financially supported by the National Natural Science Foundation of China ( ), the Fundamental Research Funds for the Central Universities ( , ) and the Qing Lan Project. Notes and references School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing , PR China. Fax: ; Tel: ; wenposhan@hotmail.com. Electronic Supplementary Information (ESI) available: Catalyst preparation, activity test and some characterizations. See DOI: /c000000x/ 1 G. Busca, L. Lietti, G. Ramis, and F. Berti, Appl. Catal., B, 1998, 18, 1. 2 P. Granger, and V. I. Parvulescu, Chem. Rev., 2011, 111, P. G. Smirniotis, D. A. Peña, and B. S. Uphade, Angew. Chem. Int. Ed., 2001, 40, J. Li, H. Chang, L. Ma, J. Hao, and R. T. Yang, Catal. Today, 2011, 175, G. Qi, and R. T. Yang, Chem. Commun., 2003, P. Forzatti, I. Nova, and E. Tronconi, Angew. Chem. Int. Ed., 2009, 121, Y. Li, H. Cheng, D. Li, Y. Qin, Y. Xie, and S. Wang, Chem. Commun., 2008, R. Q. Long, and R. T. Yang, J. Am. Chem. Soc., 1999, 121, Z. Wu, R. Jin, Y. Liu, and H. Wang, Catal. Commun., 2008, 9, W. Shan, F. Liu, Y. Yu, and H. He. Chin. J. Catal., 2014, 35, DOI: /S (14) K. Krishna, G. B. F. Seijger, C. M. van den Bleek, and H. P. A. Calis, Chem. Commun., 2002, S. Yang, Y. Guo, H. Chang, L. Ma, Y. Peng, Z. Qu, N. Yan, C. Wang, and J. Li, Appl. Catal., B, 2013, , P. Li, Y. Xin, Q. Li, Z. Wang, Z. Zhang, and L. Zheng, Environ. Sci. Technol., 2012, 46, W. Shan, F. Liu, H. He, X. Shi, and C. Zhang, Chem. Commun., 2011, 47, Y. Peng, R. Qu, X. Zhang, and J. Li, Chem. Commun., 2013, 49, W. Shan, F. Liu, H. He, X. Shi, and C. Zhang, Appl. Catal., B, 2012, , Z. Liu, Y. Yi, J. Li, S.I. Woo, B. Wang, X. Cao, and Z. Li, Chem. Commun., 2013, 49, W. Shan, F. Liu, H. He, X. Shi, and C. Zhang, Catal. Today, 2012, 184, F. Liu, and H. He, J. Phys. Chem. C, 2010, 114, F. Liu, H. He, Y. Ding, and C. Zhang, Appl. Catal., B, 2009, 93, J. Name., 2012, 00, 1-3 This journal is The Royal Society of Chemistry 2012
NO removal: influences of acidity and reducibility
Relationship between structure and activity of MoO 3 CeO 2 catalysts on NO removal: influences of acidity and reducibility Yue Peng, Ruiyang Qu, Xueying Zhang and Junhua Li*, 1 State Key Joint Laboratory
More informationInvestigation of the promotion effect of WO 3 on the decomposition and reactivity of NH 4 HSO 4 with NO on V 2 O 5 -WO 3 /TiO 2 SCR catalysts
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2016 Supporting information Investigation of the promotion effect of WO 3 on the decomposition and
More informationThe role of various iron species in Fe-Beta catalysts with low. iron loadings for NH 3 -SCR
Electronic Supplementary Material (ESI) for Catalysis Science. This journal is The Royal Society of Chemistry 2014 Supplementary Information: The role of various iron species in Fe-Beta catalysts with
More informationSupplementary Text and Figures
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Supplementary Text and Figures NaCl Induced Nickel-Cobalt Inverse Spinel
More informationStrategic use of CuAlO 2 as a sustained release catalyst for production of hydrogen from methanol steam reforming
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2018 Electronic Supplementary Information Strategic use of CuAlO 2 as a sustained release catalyst for
More informationExperimental research of technology activating catalysts for SCR DeNOx in boiler
IOP Conference Series: Earth and Environmental Science PAPER OPEN ACCESS Experimental research of technology activating catalysts for SCR DeNOx in boiler To cite this article: Xi Zeng et al 2018 IOP Conf.
More informationMechanistic Study of Selective Catalytic Reduction of NOx with C2H5OH and CH3OCH3 over Ag/Al2O3 by in Situ DRIFTS
CHINESE JOURNAL OF CATALYSIS Volume 27, Issue 11, November 2006 Online English edition of the Chinese language journal Cite this article as: Chin J Catal, 2006, 27(11): 993 998. RESEARCH PAPER Mechanistic
More informationEffect of Ni Loading and Reaction Conditions on Partial Oxidation of Methane to Syngas
Journal of Natural Gas Chemistry 12(2003)205 209 Effect of Ni Loading and Reaction Conditions on Partial Oxidation of Methane to Syngas Haitao Wang, Zhenhua Li, Shuxun Tian School of Chemical Engineering
More informationA Tunable Process: Catalytic Transformation of Renewable Furfural with. Aliphatic Alcohols in the Presence of Molecular Oxygen. Supporting Information
Electronic Supplementary Material (ESI) for Chemical Communications. This journal is The Royal Society of Chemistry 2015 A Tunable Process: Catalytic Transformation of Renewable Furfural with Aliphatic
More informationSupporting Information
Supporting Information Synthesis of Robust MOF-derived Cu/SiO 2 Catalyst with Low Copper Loading via Sol-gel Method for the Dimethyl Oxalate Hydrogenation Reaction Run-Ping Ye,,, # Ling Lin, # Chong-Chong
More informationSupplementary data Methanolysis of Ammonia Borane by Shape-Controlled Mesoporous Copper Nanostructures for Hydrogen Generation
Electronic Supplementary Material (ESI) for Dalton Transactions. This journal is The Royal Society of Chemistry 2014 Supplementary data Methanolysis of Ammonia Borane by Shape-Controlled Mesoporous Copper
More informationStudies on Mo/HZSM-5 Complex catalyst for Methane Aromatization
Journal of Natural Gas Chemistry 13(2004)36 40 Studies on Mo/HZSM-5 Complex catalyst for Methane Aromatization Qun Dong 1, Xiaofei Zhao 1, Jian Wang 1, M Ichikawa 2 1. Department of Petrochemical Engineering,
More informationAvailable online at ScienceDirect. Procedia Engineering 121 (2015 )
Available online at www.sciencedirect.com ScienceDirect Procedia Engineering 121 (2015 ) 952 956 9th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC) and the 3rd International
More informationSynthesis of isoalkanes over core (Fe-Zn-Zr)-shell (zeolite) catalyst
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) Synthesis of isoalkanes over core (Fe-Zn-Zr)-shell (zeolite)
More informationSchool of Physical Science and Technology, ShanghaiTech University, Shanghai
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2015 1 Facile Two-step thermal annealing of graphite oxide in air for graphene with a 2 higher C/O
More informationgraphene oxide as robust platform for highly sensitive uric acid detection
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2017 Supporting Information CeO 2-x /C/rGO nanocomposites derived from Ce-MOF and graphene oxide as
More informationSupplementary Materials for
advances.sciencemag.org/cgi/content/full/3/6/e1603180/dc1 Supplementary Materials for MnTiO3-driven low-temperature oxidative coupling of methane over TiO2-doped Mn2O3-Na2WO4/SiO2 catalyst This PDF file
More informationF-Doped V2O5-WO3/TiO2 as a Catalyst for NO Reduction with NH3 at Low-Temperature
F-Doped V2O5-WO3/TiO2 as a Catalyst for NO Reduction with NH3 at Low-Temperature Shule Zhang and Qin Zhong and to investigate the impact of O2, NH3, SO2 and H2O on the catalytic performance. In this study,
More informationGeneral Synthesis of Graphene-Supported. Bicomponent Metal Monoxides as Alternative High- Performance Li-Ion Anodes to Binary Spinel Oxides
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) General Synthesis of Graphene-Supported
More informationFacile Synthesis and Catalytic Properties of CeO 2 with Tunable Morphologies from Thermal Transformation of Cerium Benzendicarboxylate Complexes
Electronic Supplementary Information Facile Synthesis and Catalytic Properties of CeO 2 with Tunable Morphologies from Thermal Transformation of Cerium Benzendicarboxylate Complexes Yuhua Zheng, Kai Liu,
More informationPlease do not adjust margins. Flower stamen-like porous boron carbon nitride nanoscrolls for water cleaning
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry Please do 2017 not adjust margins Electronic Supplementary Information (ESI) Flower stamen-like porous
More informationSupporting information A Porous Zr-cluster-based Cationic Metal-Organic Framework for Highly Efficient Cr 2 O 7
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Supporting information A Porous Zr-cluster-based Cationic Metal-Organic Framework for Highly Efficient
More informationDyeing Bacterial Cellulose Pellicles for Energetic Heteroatom Doped Carbon Nanofiber Aerogels
Nano Research DOI 10.1007/s12274-014-0546-4 Nano Res 1 Dyeing Bacterial Cellulose Pellicles for Energetic Heteroatom Doped Carbon Nanofiber Aerogels Zhen-Yu Wu, Hai-Wei Liang, Chao Li, Bi-Cheng Hu, Xing-Xing
More informationEFFECTS OF ADDITIONAL GASES ON THE CATALYTIC DECOMPOSITION OF N20 OVER Cu-ZSM-5
Jointly published by Elsevier Science B.V., Amsterdam and Akad~miai Kiad6, Budapest RKCL3296 Reaet.Kinet. Catal.Lett. Vol. 64, No. 2, 215-220 (1998) EFFECTS OF ADDITIONAL GASES ON THE CATALYTIC DECOMPOSITION
More informationSupporting Information. Mechanistic Insight to Selective Catalytic Reduction. A DFT Study
Electronic Supplementary Material (ESI) for Catalysis Science & Technology. This journal is The Royal Society of Chemistry 05 Supporting Information Mechanistic Insight to Selective Catalytic Reduction
More informationElectronic Supplementary Information (ESI) Tunable Phase and Visible-Light Photocatalytic Activity
Electronic Supplementary Information (ESI) Metallic-Zinc Assistant Synthesis of Ti 3+ Self-Doped TiO 2 with Tunable Phase and Visible-Light Photocatalytic Activity Zhaoke Zheng, a Baibiao Huang,* a Xiaodong
More informationA STUDY ON PRODUCTION OF OXIDANT BY DECOMPOSITION OF H 2
Jr. of Industrial Pollution Control 34(1)(218) pp 1811-1817 www.icontrolpollution.com Research Article A STUDY ON PRODUCTION OF OXIDANT BY DECOMPOSITION OF ON MN BASED CATALYST AND NO OXIDATION JUNG HEE
More informationThe mechanism of ammonium bisulfate formation and
Electronic Supplementary Material (ESI) for Physical Chemistry Chemical Physics. This journal is the Owner Societies 2017 Supporting Information The mechanism of ammonium bisulfate formation and decomposition
More informationMicrowave catalytic reduction of nitric oxide in activated carbon bed with a new microwave catalytic reactor system
Available online www.jocpr.com Journal of Chemical and Pharmaceutical Research, 2014, 6(6):1412-1417 Research Article ISSN : 0975-7384 CODEN(USA) : JCPRC5 Microwave catalytic reduction of nitric oxide
More informationA project report on SYNTHESIS AND CHARACTERISATION OF COPPER NANOPARTICLE-GRAPHENE COMPOSITE. Submitted by Arun Kumar Yelshetty Roll no 410 CY 5066
A project report on SYNTHESIS AND CHARACTERISATION OF COPPER NANOPARTICLE-GRAPHENE COMPOSITE Submitted by Arun Kumar Yelshetty Roll no 410 CY 5066 Under the guidance of Prof. (Ms). Sasmita Mohapatra Department
More informationEffect of KCl on selective catalytic reduction of NO with NH 3 over a V 2 O 5 /AC catalyst
Available online at www.sciencedirect.com Catalysis Communications 9 (28) 842 846 www.elsevier.com/locate/catcom Effect of KCl on selective catalytic reduction of NO with NH 3 over a V 2 O 5 /AC catalyst
More informationRKCL5155 PREPARATION AND EVALUATION OF AMMONIA DECOMPOSITION CATALYSTS BY HIGH-THROUGHPUT TECHNIQUE
Jointly published by React.Kinet.Catal.Lett. Akadémiai Kiadó, Budapest Vol. 93, No. 1, 11 17 (2008) and Springer, Dordrecht 10.1007/s11144-008-5155-3 RKCL5155 PREPARATION AND EVALUATION OF AMMONIA DECOMPOSITION
More informationElectronic Supplementary Information
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2018 Electronic Supplementary Information Experimental section Materials: Tannic acid (TA), silver nitrate
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2017 Supporting Information Experimental section Synthesis of Ni-Co Prussian
More informationTwo Dimensional Graphene/SnS 2 Hybrids with Superior Rate Capability for Lithium ion Storage
Electronic Supplementary Information Two Dimensional Graphene/SnS 2 Hybrids with Superior Rate Capability for Lithium ion Storage Bin Luo, a Yan Fang, a Bin Wang, a Jisheng Zhou, b Huaihe Song, b and Linjie
More informationSize-dependent catalytic activity of monodispersed nickel nanoparticles for the hydrolytic dehydrogenation of ammonia borane
Size-dependent catalytic activity of monodispersed nickel nanoparticles for the hydrolytic dehydrogenation of ammonia borane Kun Guo a,b, Hailong Li c and Zhixin Yu a,b * a Department of Petroleum Engineering,
More informationSupplementary Information for
Supplementary Information for Facile transformation of low cost thiourea into nitrogen-rich graphitic carbon nitride nanocatalyst with high visible light photocatalytic performance Fan Dong *a, Yanjuan
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary material (ESI) for Nanoscale Electronic Supplementary Information (ESI) Synthesis of Nanostructured Materials by Using Metal-Cyanide Coordination Polymers and Their Lithium Storage
More informationSupporting Information for
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2017 Supporting Information for Microwave-enhanced catalytic wet peroxide oxidation of quinoline:
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2014 Supporting Information TiO 2 interpenetrating networks decorated with SnO
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Supporting Information Si/SiO x Hollow Nanospheres/Nitrogen-Doped Carbon
More informationVisible-light Driven Plasmonic Photocatalyst Helical Chiral TiO 2 Nanofibers
Visible-light Driven Plasmonic Photocatalyst Ag/AgCl @ Helical Chiral TiO 2 Nanofibers Dawei Wang, Yi Li*, Gianluca Li Puma, Chao Wang, Peifang Wang, Wenlong Zhang, and Qing Wang Fig. S1. The reactor of
More informationSub-10-nm Au-Pt-Pd Alloy Trimetallic Nanoparticles with. High Oxidation-Resistant Property as Efficient and Durable
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Electronic Supplementary Information Sub-10-nm Au-Pt-Pd Alloy Trimetallic Nanoparticles with High
More informationDynamic Data Modeling of SCR De-NOx System Based on NARX Neural Network Wen-jie ZHAO * and Kai ZHANG
2018 International Conference on Modeling, Simulation and Analysis (ICMSA 2018) ISBN: 978-1-60595-544-5 Dynamic Data Modeling of SCR De-NOx System Based on NARX Neural Network Wen-jie ZHAO * and Kai ZHANG
More informationPd-P nanoalloys supported on porous carbon frame as efficient catalyst for benzyl alcohol oxidation
Electronic Supplementary Material (ESI) for Catalysis Science & Technology. This journal is The Royal Society of Chemistry 2018 Supporting information Pd-P nanoalloys supported on porous carbon frame as
More informationSupporting Information
Supporting Information Enhanced Activity and Stability of Carbon-Decorated Cuprous Oxide Mesoporous Nanorods for CO 2 Reduction in Artificial Photosynthesis Luo Yu a, Guojian Li a, Xiaoshu Zhang a, Xin
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Supporting Information Metal-organic framework (ZIF-67) as efficient cocatalyst
More information1D Simulation Modeling of SCR Catalyst at Steady State Condition
1D Simulation Modeling of SCR Catalyst at Steady State Condition Presented by Hitesh Chaudhari & Mohak Samant The Automotive Research Association of India, Pune 6 th February 2017 Overview Objective SCR
More informationSupporting Information. Modulating the photocatalytic redox preferences between
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2016 Supporting Information Modulating the photocatalytic redox preferences between anatase TiO 2 {001}
More informationand their Maneuverable Application in Water Treatment
Hierarchical Films of Layered Double Hydroxides by Using a Sol-Gel Process and their Maneuverable Application in Water Treatment Yufei Zhao, Shan He, Min Wei,* David G. Evans, Xue Duan State Key Laboratory
More informationSupporting Information. Phenolic/resin assisted MOFs derived hierarchical Co/N-doping carbon
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Electronic Supplementary Material (ESI) for Journal of Materials Chemistry
More informationSupporting Information
Supporting Information Remarkable performance of Ir 1 /FeO x single-atom catalyst in water gas shift reaction Jian Lin, Aiqin Wang, Botao Qiao, Xiaoyan Liu, Xiaofeng Yang, Xiaodong Wang, Jinxia Liang,
More informationSupplementary information for Organically doped palladium: a highly efficient catalyst for electroreduction of CO 2 to methanol
Electronic Supplementary Material (ESI) for Green Chemistry. This journal is The Royal Society of Chemistry 2015 Supplementary information for rganically doped palladium: a highly efficient catalyst for
More informationSelf-Supported Three-Dimensional Mesoporous Semimetallic WP 2. Nanowire Arrays on Carbon Cloth as a Flexible Cathode for
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2016 Electronic supplementary information Self-Supported Three-Dimensional Mesoporous Semimetallic
More informationEnhancing Stability of Platinum on Silica by Surface Modification - Application to CO Oxidation -
2012 CLEERS Workshop Enhancing Stability of Platinum on Silica by Surface Modification - Application to CO Oxidation - Mi-Young Kim, Jae-Soon Choi, Todd J. Toops Emissions and Catalysis Research Group
More informationSupplementary Information
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2017 Supplementary Information Supramolecular interactions via hydrogen bonding contributing to
More informationHexagonal Boron Nitride supported mesosio 2 -confined Ni Catalysts. for Dry Reforming of Methane
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2017 Electronic Supplementary Information (ESI): Hexagonal Boron Nitride supported mesosio 2 -confined
More informationElectronic Supplementary Information for the Manuscript
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 214 Electronic Supplementary Information for the Manuscript Enhancing the visible
More informationFeOx-VOx-WOx-MnOx-CeOx/TiO 2 as a catalyst for selective catalytic reduction of NOx with NH 3 and the role of iron
Indian Journal of Chemistry Vol. 54A, June 2015, pp. 744-751 FeOx-VOx-WOx-MnOx-CeOx/TiO 2 as a catalyst for selective catalytic reduction of NOx with NH 3 and the role of iron Su Yu a, *, Dong Guojun*,b,
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Supporting Information Adding refractory 5d transition metal W into PtCo
More informationSupporting information. Porous Graphene-based Material as an Efficient Metal Free. Catalyst for the Oxidative Dehydrogenation of Ethylbenzene
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2015 Supporting information Porous Graphene-based Material as an Efficient Metal Free Catalyst for the
More informationDeactivation of V 2 O 5 /Sulfated TiO 2 Catalyst Used in Diesel Engine for NO X Reduction with Urea
Deactivation of V 2 O 5 /Sulfated TiO 2 Catalyst Used in Diesel Engine for NO X Reduction with Urea In-Young Lee a*, Jung-Bin Lee a, Kwang-Kyu Park a, Jeong-Hee Hong b a Korea Electric Power Corporation,
More informationOne-pot Solvent-free Synthesis of Sodium Benzoate from the Oxidation of Benzyl Alcohol over Novel Efficient AuAg/TiO 2 Catalysts
Electronic Supplementary Information One-pot Solvent-free Synthesis of Sodium Benzoate from the Oxidation of Benzyl Alcohol over Novel Efficient AuAg/TiO 2 Catalysts Ying Wang, Jia-Min Zheng, Kangnian
More informationAn in-situ infrared and XAS study on NO adsorption on Pd/zeolite under complex gas feed
An in-situ infrared and XAS study on NO adsorption on Pd/zeolite under complex gas feed Donna Liu, Loredana Mantorosie, H. Islam, V. Novak, M. Sarwar, H.Y. Chen, J. E. Collier and D. Thompsett Outline
More informationEffect of Calcination Temperature on the Characteristics of SO 4. /TiO 2 Catalysts for the Reduction of NO by NH 3
Korean J. Chem. Eng., 20(2), 273-278 (2003) Effect of Calcination Temperature on the Characteristics of SO 4 /TiO 2 Catalysts for the Reduction of NO by NH 3 Soo Tae Choo, In-Sik Nam, Sung-Won Ham* and
More informationMolecular-Level Insight into Selective Catalytic Reduction of NO x with NH 3 to N 2
Supporting Information Molecular-Level Insight into Selective Catalytic Reduction of NO x with to N 2 over Highly Efficient Bifunctional V a Catalyst at Low Temperature Ying Xin, Hao Li, Nana Zhang, Qian
More informationph-depending Enhancement of Electron Transfer by {001} Facet-Dominating TiO 2 Nanoparticles for Photocatalytic H 2 Evolution under Visible Irradiation
S1 ph-depending Enhancement of Electron Transfer by {001} Facet-Dominating TiO 2 Nanoparticles for Photocatalytic H 2 Evolution under Visible Irradiation Masato M. Maitani a *, Zhan Conghong a,b, Dai Mochizuki
More informationEfficient removal of typical dye and Cr(VI) reduction using N-doped
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Efficient removal of typical dye and Cr(VI) reduction using N-doped magnetic porous carbon
More informationSupplementary Information
Supplementary Information Fabrication of Novel Rattle-Type Magnetic Mesoporous carbon Microspheres for Removal of Microcystins Xinghua Zhang and Long Jiang* Beijing National Laboratory for Molecular Science
More informationDegradation of Bisphenol A by Peroxymonosulfate Catalytically Activated with. Gui-Xiang Huang, Chu-Ya Wang, Chuan-Wang Yang, Pu-Can Guo, Han-Qing Yu*
Supporting Information for Degradation of Bisphenol A by Peroxymonosulfate Catalytically Activated with Mn 1.8 Fe 1.2 O 4 Nanospheres: Synergism between Mn and Fe Gui-Xiang Huang, Chu-Ya Wang, Chuan-Wang
More informationElectronic Supplementary Information
Electronic Supplementary Information Designed Copper-amine Complex as an Efficient Template for One-pot Synthesis of Cu-SSZ-13 Zeolite with Excellent Activity for Selective Catalytic Reduction of NOx by
More informationCeramic Processing Research
Journal of Ceramic Processing Research. Vol. 15, No. 2, pp. 125~129 (2014) J O U R N A L O F Ceramic Processing Research Structure, surface acidity and catalytic activity of WO 3 -TiO 2 catalyst for NH
More informationSupporting Information
Supporting Information Ultrathin Spinel-Structured Nanosheets Rich in Oxygen Deficiencies for Enhanced Electrocatalytic Water Oxidation** Jian Bao, Xiaodong Zhang,* Bo Fan, Jiajia Zhang, Min Zhou, Wenlong
More informationSupporting Information (SI) for. Transfer with Catalytic Activity toward Continuous-Flow Hydrogen
Supporting Information (SI) for Magnetic Co@g-C 3 N 4 Core-Shells on rgo Sheets for Momentum Transfer with Catalytic Activity toward Continuous-Flow Hydrogen Generation Shasha Duan, Guosheng Han, Yongheng
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary Material (ESI) for Catalysis Science & Technology. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information (ESI) Multi-scale promoting effects
More informationThe effect of V2O5-WO3-TiO2 electrode thickness on ammonia sensing properties for potentiometric sensor
The effect of V2O5-WO3-TiO2 electrode thickness on ammonia sensing properties for potentiometric sensor Chao Wang, Bin Yang, Jinlong Xu, Feng Xia and Jianzhong Xiao a State Key Laboratory of Materials
More informationClean synthesis of propylene carbonate from urea and 1,2-propylene glycol over zinc iron double oxide catalyst
Journal of Chemical Technology and Biotechnology J Chem Technol Biotechnol 81:794 798 (2006) DOI: 10.1002/jctb.1412 Clean synthesis of propylene carbonate from urea and 1,2-propylene glycol over zinc iron
More informationPrecious Metal-free Electrode Catalyst for Methanol Oxidations
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2015 Supporting information SnO 2 Nanocrystals Decorated-Mesoporous ZSM-5 Spheroidicity
More informationSupplementary Figure 1 Morpholigical properties of TiO 2-x SCs. The statistical particle size distribution (a) of the defective {001}-TiO 2-x SCs and
Supplementary Figure 1 Morpholigical properties of TiO 2-x s. The statistical particle size distribution (a) of the defective {1}-TiO 2-x s and their typical TEM images (b, c). Quantity Adsorbed (cm 3
More informationEFFECT OF MORPHOLOGY OF NANOSTRUCTURED CERIA-BASED CATALYSTS OVER CO, SOOT AND NO OXIDATIONS
EFFECT OF MORPHOLOGY OF NANOSTRUCTURED CERIA-BASED CATALYSTS OVER CO, SOOT AND NO OXIDATIONS Melodj Dosa, Marco Piumetti, Samir Bensaid, Tahrizi Andana, Debora Fino, Nunzio Russo* melodj.dosa@polito.it
More informationSupporting Information
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2019 Supporting Information Mesoporous cobalt-iron-organic frameworks: plasma-enhanced
More informationSelf-assembled pancake-like hexagonal tungsten oxide with ordered mesopores for supercapacitors
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Electronic Supporting Information Self-assembled pancake-like hexagonal
More informationfor highly efficient and stable corrosive-water evaporation
Electronic Supplementary Material (ESI) for Journal of Materials Chemistry A. This journal is The Royal Society of Chemistry 2018 Electronic Supplementary Information Synthesis of mesoporous Fe 3 Si aerogel
More informationVery low temperature CO oxidation over colloidally deposited gold nanoparticles on Mg(OH) 2 and MgO
Supporing Information Very low temperature CO oxidation over colloidally deposited gold nanoparticles on Mg(OH) 2 and MgO Chun-Jiang Jia, Yong Liu, Hans Bongard, Ferdi Schüth* Max-Planck-Institut für Kohlenforschung,
More informationSupplementary Information for Efficient catalytic conversion of fructose into hydroxymethylfurfural by a novel carbon based solid acid
Supplementary Information for Efficient catalytic conversion of fructose into hydroxymethylfurfural by a novel carbon based solid acid Jianjian Wang, Wenjie Xu, Jiawen Ren*, Xiaohui Liu, Guanzhong Lu,
More informationPhotodecomposition of Water Catalyzed by Zr- and Ti-MCM-41
ESO 25(6) #7759 Energy Sources, 25:591 596, 2003 Copyright 2003 Taylor & Francis 0090-8312/03 $12.00 +.00 DOI: 10.1080/00908310390195651 Photodecomposition of Water Catalyzed by Zr- and Ti-MCM-41 S.-H.
More informationControlling Interfacial Contact and Exposed Facets for. Enhancing Photocatalysis via 2D-2D Heterostructure
Electronic Supplementary Material (ESI) for Chemical Communications. This journal is The Royal Society of Chemistry 2015 Electronic Supplementary Information Controlling Interfacial Contact and Exposed
More informationElectronic Supplementary Information (ESI)
Electronic Supplementary Information (ESI) Cu-SSZ-39, an active and hydrothermally stable catalyst for the selective catalytic reduction of NOx Manuel Moliner, *a Cristina Franch, a Eduardo Palomares,
More informationEfficient Molybdenum (VI) Modified Zr-MOF Catalyst for
Electronic Supplementary Material (ESI) for RSC Advances. This journal is The Royal Society of Chemistry 2014 Efficient Molybdenum (VI) Modified Zr-MOF Catalyst for Epoxidation of Olefins Jia Tang, a Wenjun
More informationInsights into Interfacial Synergistic Catalysis over Catalyst toward Water-Gas Shift Reaction
Supporting Information Insights into Interfacial Synergistic Catalysis over Ni@TiO2-x Catalyst toward Water-Gas Shift Reaction Ming Xu, 1 Siyu Yao, 2 Deming Rao, 1 Yiming Niu, 3 Ning Liu, 1 Mi Peng, 2
More informationCatalysis Letters, 79 (1-4): Kluwer Academic Publishers-Plenum Publishers.
Provided by the author(s) and University College Dublin Library in accordance with publisher policies. Please cite the published version when available. Title The effect of support and copper precursor
More informationSurface Chemical Modification of Nanosized Oxide Particles with a Titanate Coupling Reagent in Isopropanol
Ind. Eng. Chem. Res. 2008, 47, 1513-1517 1513 Surface Chemical Modification of Nanosized Oxide Particles with a Titanate Coupling Reagent in Isopropanol Xiao-Yong Fang, Ting-Jie Wang,* Hai-Xia Wu, and
More informationCatalytic Decomposition of Formaldehyde on Nanometer Manganese Dioxide
Modern Applied Science April, 29 Catalytic Decomposition of Formaldehyde on Nanometer Manganese Dioxide Xiujuan Chu & Hua Zhang (Corresponding author) Tianjin Municipal Key Lab of Fibres Modification and
More informationHighly doped and exposed Cu(I)-N active sites within graphene towards. efficient oxygen reduction for zinc-air battery
Electronic Supplementary Material (ESI) for Energy & Environmental Science. This journal is The Royal Society of Chemistry 2016 Electronic Supplementary Information (ESI) for Energy & Environmental Science.
More informationElectronic Supplementary Information. Alcohols
Electronic Supplementary Information An Excellent Au/meso-γ-Al 2 O 3 Catalyst for Aerobic Selective Oxidation of Alcohols Guofeng Zhao, Min Ling, Huanyun Hu, Miaomiao Deng, Qingsong Xue, Yong Lu * Shanghai
More informationSupplementary Information
Electronic Supplementary Material (ESI) for Nanoscale. This journal is The Royal Society of Chemistry 2014 Supplementary Information Highly efficient and recyclable triple-shelled Ag@Fe 3 O 4 @SiO 2 @TiO
More informationSulfur-bubble template-mediated synthesis of uniform porous g-c 3 N 4 with superior photocatalytic performance
Electronic Supplementary Material (ESI) for ChemComm. This journal is The Royal Society of Chemistry 2014 Electronic Supplementary Information Sulfur-bubble template-mediated synthesis of uniform porous
More informationCatalytic Oxidation of Benzene with Ozone Over Nanoporous Mn/MCM-48 Catalyst
Copyright 12 American Scientific Publishers All rights reserved Printed in the United States of America Journal of Nanoscience and Nanotechnology Vol. 12, 5942 5946, 12 Catalytic Oxidation of Benzene with
More informationRSC Advances.
This is an Accepted Manuscript, which has been through the Royal Society of Chemistry peer review process and has been accepted for publication. Accepted Manuscripts are published online shortly after
More informationFigure S2: Representative TEM micrographs of the 1wt% Pt/ZSM-5 catalysts used in this work: (a) 2.A; (b) 2.B.
Electronic Supplementary Material (ESI) for Catalysis Science & Technology. This journal is The Royal Society of Chemistry 2014 Catal. Sci. Technol. RSCPublishing Cite this: DOI: 10.1039/x0xx00000x Role
More information